--- product_id: 170464798 title: "EX ELECTRONIX Express High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz)" brand: "ex electronix express" price: "$391.98" currency: USD in_stock: true reviews_count: 8 category: "Ex Electronix Express" url: https://www.desertcart.ec/products/170464798-ex-electronix-express-high-voltage-probe-40-000-volts-max store_origin: EC region: Ecuador --- # 40,000V max DC power ±1% accuracy up to 20kV DC 1,000MΩ ultra-high input impedance EX ELECTRONIX Express High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) **Brand:** ex electronix express **Price:** $391.98 **Availability:** ✅ In Stock ## Summary > ⚡ Power Up Your Precision — Measure Like a Pro! ## Quick Answers - **What is this?** EX ELECTRONIX Express High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) by ex electronix express - **How much does it cost?** $391.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/170464798-ex-electronix-express-high-voltage-probe-40-000-volts-max) ## Best For - ex electronix express enthusiasts ## Why This Product - Trusted ex electronix express brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision You Can Trust:** Experience industry-leading accuracy of ±1% up to 20kV DC, ensuring reliable diagnostics every time. - • **Compact & Durable Design:** Lightweight 13.4-inch probe built for professional use, combining portability with rugged reliability. - • **Ultra-High Input Impedance:** 1,000MΩ input impedance minimizes circuit loading for pristine signal integrity. - • **Unmatched Voltage Handling:** Safely measure up to 40,000 volts DC and 28,000 volts AC with confidence. - • **Robust 1000:1 Division Ratio:** Easily scale down high voltages for safe, precise multimeter readings without compromise. ## Overview The EX ELECTRONIX Express High Voltage Probe delivers professional-grade voltage measurement with a max capacity of 40,000V DC and 28,000V AC. Featuring a 1,000MΩ input impedance and ±1% accuracy up to 20kV DC, it ensures precise, safe readings. Its 1000:1 division ratio and durable design make it an essential tool for engineers and technicians demanding reliable high-voltage diagnostics. ## Description EX ELECTRONIX Express High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz): desertcart.com: Industrial & Scientific Review: Works fine - Seems to work fine. Can't check calibration exactly, but it reads very close to a 5kV analog meter on my hipot tester. Review: It really is accureate! - Have always needed a high-voltage probe but made do with a 470 Meg resistor from my junkbox and some math. However the reasonable price of this item (compared to the big names) pushed me over the edge and I 'm happy for it! Accuracy of the probe itself is better than 1/2% as confirmed be measuring a moderate voltage directly with my 4-1/2 digit DVM on the Volts scale then measuring it again with this probe on the mVolts scale and the readings agreed perfectly! ## Features - 40,000 Volts max DC - 28,000 Volts max AC (50/60 Hz) - 1,000MΩ input impedance - Accuracy DC: +/- 1% to 20KV +/- 2% to 40KV, AC: 5% to 10% (50/60 Hz) - Division ratio 1,000:1 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LW5UKQ6 | | Additional Features | High Accuracy | | Age Range Description | Adult | | Best Sellers Rank | #156,055 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #643 in Test Probes & Leads | | Brand Name | EX ELECTRONIX EXPRESS | | Color | Red, Black | | Customer Reviews | 4.5 4.5 out of 5 stars (66) | | Display Type | Digital | | Included Components | High Voltage Probe, User Manual | | Indoor Outdoor Usage | Indoor | | Item Length | 13.39 Inches | | Manufacturer | RSR ELECTRONICS | | Model | HVP40 | | Model Name | HVP40 | | Outer Material | Plastic | | Part Number | HVP40 | | Power Source | Corded Electric | | Product Care Instructions | Wipe Clean | | Reusability | Reusable | | Style Name | 40,000 Volts Max DC, 28,000 Volts Max AC | | UPC | 714833891352 | | Unit Count | 1.0 Count | | Upper Temperature Range | 50 Degrees Celsius | ## Product Details - **Age Range (Description):** Adult - **Brand:** EX ELECTRONIX EXPRESS - **Color:** Red, Black - **Display Type:** Digital - **Included Components:** High Voltage Probe, User Manual - **Outer Material:** Plastic - **Power Source:** Corded Electric - **Product Care Instructions:** Wipe Clean - **Special Feature:** High Accuracy - **Unit Count:** 1.0 Count ## Images ![EX ELECTRONIX Express High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) - Image 1](https://m.media-amazon.com/images/I/61ik-2836WL.jpg) ## Questions & Answers **Q: Can this be used to test output on microwave Transformers?** A: Yes. I have used it to check the HV output of a microwave and neon transformers. Be careful. Use one hand to measure and the other hand in your pocket. **Q: Can this be used with oscilloscope to measure ac beside 60hz sinusoidal? what is bandwidth?** A: I suppose it could, though the signal could potentially be noisy. The leads are not shielded. You would also have to correct the impedance. This probe uses a simple voltage-divider resistor network to do its magic. Good luck! **Q: Could this be use to probe the residual high voltage in a CRT monitor (and to dissipate it)?** A: Yes, definitely. The probe's input resistance in 1G-ohm (1000 M-ohm). With a typical 500pF filter capacitance in the CRT HV power supply, the discharge rate will be 0.5 seconds to discharge to 37% of the original voltage, 1 second to 37% of that, etc. After 5 seconds there will be only a couple of volts remaining. BE SURE to attach the ground clip to the metal chassis of the CRT device whether or not the probe is connected to a meter. To be completely safe, wait a minute after discharging then repeat the process. The glass in the CRT "absorbs" some charge and can recharge the filter capacitor to a few hundred volts. **Q: can it measure 12 volt vehicle ignition coils?** A: I could not say for sure. But the probe does indeed measure DC voltage up to 40,000 volts. So you should be able to set your meter that you have the probe plugged into and make the measurement, by setting your meter to read DC volts. (not AC volts) Obviously you're only dealing with 12v on automotive voltage. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works fine *by S***R on June 27, 2025* Seems to work fine. Can't check calibration exactly, but it reads very close to a 5kV analog meter on my hipot tester. ### ⭐⭐⭐⭐⭐ It really is accureate! *by H***L on April 20, 2021* Have always needed a high-voltage probe but made do with a 470 Meg resistor from my junkbox and some math. However the reasonable price of this item (compared to the big names) pushed me over the edge and I 'm happy for it! Accuracy of the probe itself is better than 1/2% as confirmed be measuring a moderate voltage directly with my 4-1/2 digit DVM on the Volts scale then measuring it again with this probe on the mVolts scale and the readings agreed perfectly! ### ⭐⭐⭐⭐ Design Changes *by R***D on November 5, 2021* About right for price, but would be wiling to pay twice the price with a variable user slectable voltage splitter ratio in several increments to less than 1000:1 from 40 kv. Also, with a probe that is a flexible shaft instead of rigid; also, with a slightly larger ## Frequently Bought Together - EX ELECTRONIX EXPRESS High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) Red, Black - onelinkmore BNC Male Plug to 2X 4mm Dual Banana Female Jack Socket Binding Post RF Coax Coaxial Splitter Connector BNC Banana Adapter for HF Radio Antennas Oscilloscope DVM Pack of 5 - Goupchn Oscilloscope Clip Probes 200MHz Fully Insulated BNC End Probe with Accessories Kit 1X 10X --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/170464798-ex-electronix-express-high-voltage-probe-40-000-volts-max](https://www.desertcart.ec/products/170464798-ex-electronix-express-high-voltage-probe-40-000-volts-max) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-04-22*